SerialPort Constructor (String)

Initializes a new instance of the SerialPort class using the specified port name.

Namespace:  System.IO.Ports
Assembly:  System (in System.dll)

public SerialPort(
	string portName
)

Parameters

portName
Type: System.String

The port to use (for example, COM1).

ExceptionCondition
IOException

The specified port could not be found or opened.

Use this constructor to create a new instance of the SerialPort class when you want to specify the port name.

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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